Arrhenius Acid Definition: Hydronium breaks up to yield an H+ in solution. Arrhenius Base Definition: Hydroxide is an OH-dissolved in water. Bronsted-Lowry Acid Definition: Hydronium is an H+ donor regardless of solution. Bronsted-Lowry Base Definition: Hydroxide attacks and accepts the H+ from hydronium.Lewis Acid Definition: The H+ on Hydronium accepts the attacking electron pair to form a bond.ronsted-Lowry Acid Definition: Hydronium is an H+ donor regardless of solution. Bronsted-Lowry Base Definition: Hydroxide attacks and accepts the H+ from hydronium. Lewis Acid Definition: The H+ on Hydronium accepts the attacking electron pair to form a bond.
It is believed that the first Ancient Chinese fire works were made in Han Dynasty (206 BC-220 AD). Fireworks in Ancient China were originally used for shows, christenings and special funeral ceremonies.
Even before gunpowder, the Chinese were using the term rocket. In the year 228 the Ancient Chinese used arrows which were lit with fire to defend an area of the country from intruders. This created a new word which literally meant fire arrow; this is the same word in Chinese for rocket.